Banana Bread Recipe

Does anyone have a good banana bread recipe? Preferably one with walnuts in, or that would go well with me putting walnuts in. I make banana cakes pretty regularly but tried banana bread for the first time and it took 4 times as long to cook as the recipe said, and came out like a rock. That would suggest I stuffed something up, but I went over the recipe and don't think I got any proportions wrong. It was a random recipe from the web though.